Biol. [f. Gr. χρῶμα, χρώματ- color + -IN.] Tissue that can be stained by coloring matter when immersed in it.
1882. Gilburt, in Jrnl. Quekett Microsc. Club, Ser. II. No. 1. 32. It is proposed to call the denser element which eagerly takes the colour ‘Chromatin,’ and the one which refuses it ‘Achromatin.’
1882. Vines, Sachs’ Bot., I. App. 946. He is of opinion that the equatorial plate consists of chromatin and the rest of the spindle of achromatin.
